Double-acting wrench.



R. OWEN, JR. DOUBLE ACTING WRENCH.

APPLIOATION I'ILIID PEB.3, 1 913.

Patented Sept.9,1913.

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9 /&R

ROBERT OWEN R -11. OWEN, JR. DOUBLE ACTING WRENCH;

APPLICATION FILED IEB.3, 1913. 7

1,072,980. Patented Sept. 9, 1913,

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' fame/Wm ERT' QWEN JR COLUMBL PLANcuRAPu 60., WASHINGTON D c entrain sra'rss PATENT enrich.

ROBERT owns. an, or SHAWNEE, OHIO.

DOUBLE-ACTING WRENCH.

Specification of Letters Patent.

ToaZZ whom it may concern:

Be it known that 1, ROBERT OWEN, Jr., a citizen of the United States, residing at Shawnee, in the county of Perry and State of Ohio, have invented certain new and useful Improvements in Double-Acting Wenches, of which the following is a specification, referencebeing had. to the accompanying drawings.

This inventionrelates to improvements in wrenches and more particularly to thatclass of wrenches which are provided with a rotatable head having ratchet teeth formed thereon and .a lever having a pawl for engagement with the ratchet teeth for the purpose of rotating the head.

An object of this invention is the provision of a wrench of this character in Which two heads having nut receiving sockets are rotatably mounted in the handle, the heads being geared to each other and being provided with ratchet teeth, and an operating lever having pawls adapted for engagement with the ratchet teeth on the heads, whereby one head will be turned in one direction and the other head turned in the opposite direction so that either left threaded or right threaded nuts may be turnedwithout changing the position of thehandleof the wrench. Another object of this invention is the provision of a wrench of this character in which the heads will be rotated continually in opposite directions upon oscillation of the operating lever.

A still further object of this invention is the provision of a wrench in which heads having sockets of different sizes are readily interchangeable in the handle, so that different sized nuts may be turned with the same handle.

With these and other objects in view, my invention consists in certain novel construe tions, combinations and arrangements of parts to be hereinafter more fully described, claimed and illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of my device.

. 6 is a transverse section of one of the rotary heads.

Referring mor particularly to the drawings, the numeral 1 designates the handle of the wrench, the handle consisting of two sections, the outer ends of which are curved as at 2 to form semicylindrical recesses 3. The sections of the handle are secured together by bolts 4 or other suitable fastening devices and when the sections are connected, the recesses 3 formed by the curved portions of the sections of the handle form circular bearings 5 and 6 respectively for the reception of the rotatable heads 7. Each of the heads 7 is formed on its periphery with a central annular groove 8, which is adapted to engage the curved portions 2 of the handle whereby lateral movement of the heads 7 is prevented. Formed on one side of the annular groove of each of the heads is an annular series of cogs 9, the cogs on each head being adapted to mesh with each other so that upon rotation of one head, the other will be rotated simultaneously in the opposite direction. Formed on the other side of the annular groove on each head is an annular series of ratchet teeth 10, the teeth being of relatively less height than the cogs 9, so that the teeth on the respective heads will not engage each other when the heads are rotated. 1

Pivotally secured to the handle, as at 11, inwardly of the heads, is a lever 12, the lever being secured to the handle intermediate Patented Sept. 9, 1913.. 3 Application filer]. February 3, 1913. Serial No. 746,080.

of its ends so that the opposite ends thereof will project beyond the opposite edges of the handle. Pivotally secured to the outer end of the lever 12, as at 13, is a pawl 14 which is adapted for engagement with the ratchet teeth 10 on the inner head, and pivotally secured to the lever on the, opposite side of the handle, as at 15, is a pawl 16 which is relatively longer than the pawl 14 and is adapted for engagement with the ratchet teeth on the outer head. It is to be noted that the ratchet teeth 10 on he heads face inopposite directions, so that upon oscillation of the lever 12, the outer head will be rotated toward the right, while the inner head will be rotated in the opposite direction. If desired, leaf springs 17 may be secured to the lever so as to bear against the pawls 14 and 16 and normally maintain them in engagement with the ratchet teeth on the heads. Openings 18 are formed in the heads 7, the intermediate portions of the openings being annular, as at 19, for the reception of the bolts, and the opposite ends thereof being angular, as at 20, forthe reception of the nuts which are to be turned upon the bolts.

In the practical use of my device, when a nut having right hand threads adapted :to"v be turned upon the bolt is engaged in the nut receiving socket in the outer head 7,. the lever 12 is moved backward and for-j ward and upon forward movement of the lever, the pawl 16 engaging in the ratchet teeth in the forward head will turn thefi head toward the -:ri-ght, and upon reverse movement of the lever 12, the pawl 14 engaging in the teeth of the inner head will turn the inner head toward i-he left whereby the outer head will again he turned to-* ward the right, owing to the engagement of the cogs 9. It will be noted that while the outer head is continual-1v turned toward the right, the inner head will be simultaneously turned toward the left so that when a nut having a left hand thread is adapted to be turned on a bolt, the socket of the inner head is engaged with the nut so that upon oscillation of the lever 12, the nut will be readily threaded upon the bolt,

It will be understood that the wrench may he used as a single Wrench by removing the lever 12 and pivotally connecting one oi" the pawls to the handle. It is also to be understood that heads having sockets of: di-iierent sizes may be provided, so that one headmay be readily removed and another applied when it is desired to turn nuts of different sizes. By reversing the position of the wrench, a nut may be threaded or unthreaded with the same head.

Having thus fully described my invention, what I desire to claim and secure by Letters Patent is,:- V

l. A wrench comprising a handle consisting of two sections, the outer ends of said sections heing curved in opposite directions I to form circular bearings, heads rotatably mounted in said bearings, said heads being for-med with central annular grooves for engagement with the curved portions of said sections, and means connected to said handle to rotate said heads in opposite directions, as and for the purpose described. 2. A wrench compel-sing a handle, heads rotatably mounted in said handle at the outer end thereof, a lever pivotally connected intermediate of its ends to said han-- dle inwardly of said heads, the opposite ends of said lever extending at right, angles from said handle, and means connected to said{ lever on either side of said handle for en E gagenient with said heads, and for the; purpose described. l A device of the character described l for engagement with said ratchet teeth, "as

comprising a handle, heads rotatably mount- Copies of this patent may be obtained for are cents each, by addressing, the Qommissionerof new, i a

' Washington, D. G.

ed in said handle at the out-erend thereof, a lever pivotally connected intermediate of its ends to said handle inwardly of said heads,

the opposite ends of said lever extending at right angles from said handle, each of said heads being formed with an annular series of ratchet teeth, and pawls pivotally -oon-- nected to said lever on either sideof said handles-rid adapted to engagesaid ratchet teeth, as and for the-purpose described. if p 4:. A wrench of the-character described ally connected intermediate ol' its ends to said handle inwardly of said heads, the opposite ends of said lever 'extending at right tively difllerent lengths pivotally connected e to said lever on-either side oisaid handle,

and 01 the purpose described. 7

A wrench. comprising a handle cons1st1ng of two' sections, the outer ends of said sections being curvedoutwardlyto form circular bearings, heads rotataibly m said bearings, said head's having central mounted annular grooves for engagementwith the,

curved portions, of said sections, intermeshe 1 mg cogs formed on said heads one s1de-oisaid grooves, ratchet teeth formedjon said heads :to the otherside of said grooves,

lever pivotally connected to said handle, and I pawls pivotally connected to said lever and adapted to engage said ratchet teeth, as and for the purpose described. I V

6. A wrench comprising a handle consisting of two sections, the outer ends of said circular bearings, heads rotatably mounted "in said bearings, said heads being itorined with central annular grooves for engagement with the curved portions of said sec t1ons, nterineslnng cogs formed on said,

sections being curved outwardly to form heads to one side of said grooves, ratchet teeth formed on'said heads to the otherlside of said grooves, a lever pivotaily connected iio intermediate of its ends to said handle inwardly of said heads, the opposite ends of said lever extending at r ghta-ngles from said handle, and 'pawls-ol relativelydifferent Lengths prvotally connected-do said lever on 7115 either side of said handle"forengagement,

with said ratchet teeth, as and for the pur- 7 posedescribed. I r N In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

4 ROBERT QWENJ-R,

Witnesses; 7 r SAMUEL Gnoss,

EDWARD Arman.

so angles from said handle, and pawls 'orfrela} 

